[swift-evolution] proposal for a even simpler guard.. => guard!

[David Waite]

By existing semantics of the exclamation mark, ‘guard!' would be expected to cause the application to fail fatally, not throw. This is the same as try!.

-DW

> On May 2, 2016, at 1:09 PM, Dominik Pich via swift-evolution <swift-evolution at swift.org> wrote:
> 
> Hello,
> often the guard statement is used to only unwrap optionals. multiple guards will cause a lot of ‘overhead’.
> also often if it doesn’t work. there is no easy way we can gracefully recover ;)
> 
> so how about we do the same as with try/catch where you can use try! and have a guard!
> 
> the guard! could just throw an exception …
> 
> regards
> Dominik
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